Lithium battery angle and torsion testing machine

Abstract

The utility model relates to battery test technical field discloses lithium battery angle and torsion testing machine, including frame and two lithium batteries, the top of frame is installed with testing mechanism, the top fixedly connected with support block no.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, and in particular to a lithium battery angle and torque testing machine. Background Technology

[0002] With the rapid development of the new energy industry, lithium batteries, with their advantages of high energy density and long cycle life, are widely used in electric vehicles, energy storage devices, portable electronic devices, and other fields. The safety and reliability of lithium batteries directly affect the performance of end products. Among these, the positive and negative electrode copper pillars, as key connecting components for current transmission in lithium batteries, have a significant impact on the overall performance of the battery due to their welding quality and structural stability. To ensure that lithium batteries do not malfunction during use due to loosening or detachment of the positive and negative electrode copper pillars, angular fatigue testing and torsional testing are important steps in the production and quality inspection processes.

[0003] Currently, in the testing field of copper pillars welded to the positive and negative electrodes of lithium batteries, fatigue testing of left and right swing angles mainly relies on manual operation, which is not only labor-intensive but also difficult to guarantee the accuracy of test results. Torque testing of copper pillars welded to the positive and negative electrodes is mostly carried out using simple tooling, resulting in large deviations in test data and making it difficult to meet the requirements of high-precision and standardized testing. Therefore, a lithium battery angle and torque testing machine is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a lithium battery angle and torque testing machine, which aims to improve the problem that existing lithium battery testing equipment cannot meet the testing requirements for high precision and standardization.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lithium battery angle and torque testing machine includes a frame and two lithium batteries. A testing mechanism is installed on the top of the frame, and a support block is fixedly connected to the top of the frame. An angle clamping assembly is installed on the top of the support block.

[0007] The testing mechanism includes an angle testing component and a torque testing component. The angle testing component includes an angle testing sensor, which is mounted on the top of the frame. A stepper motor is mounted in the middle of the angle testing sensor, and a fixing plate is fixedly connected to the outside of the angle testing sensor. A rotating plate is mounted in the middle of the angle testing sensor and is rotatably connected to the outside of the fixing plate. An angle testing clamp is mounted on the outside of the rotating plate.

[0008] As a further description of the above technical solution:

[0009] The torque testing assembly includes a torque testing sensor, which is mounted on the top of the frame. A stepper motor is mounted in the middle of the torque testing sensor, and a rotating rod is rotatably connected to the middle of the torque testing sensor. A base is fixedly connected to the top of the frame, and a torque clamping assembly is mounted on the outer side of the base.

[0010] As a further description of the above technical solution:

[0011] The angle clamping assembly includes a pneumatic clamp, which is fixedly connected to the top of the support block. A clamping plate is fixedly connected to the working end of the pneumatic clamp, and a fixing block is fixedly connected to the top of the frame.

[0012] As a further description of the above technical solution:

[0013] The torque clamping assembly includes a pneumatic clamp two, which is fixedly connected to the top of the base two. The working end of the pneumatic clamp two is fixedly connected to a clamping plate two. The top of the frame is fixedly connected to a fixing block two, and a lithium battery is located on the outside of the fixing block two.

[0014] As a further description of the above technical solution:

[0015] The top of the frame is fixedly connected to a second fixing plate, and the rotating rod is rotatably connected to the middle of the second fixing plate.

[0016] As a further description of the above technical solution:

[0017] A base is fixedly connected to the top of the frame, and another lithium battery is located on top of the base.

[0018] As a further description of the above technical solution:

[0019] An angle display, a test parameter table, and a torque display are respectively installed in the middle part of the frame;

[0020] As a further description of the above technical solution:

[0021] The bottom of the frame is fixedly connected to multiple feet.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a pneumatic clamp drives a clamping plate to work with a fixing block to clamp and maintain the stability of the lithium battery during angle testing. The automated structure realizes the left and right swing angle fatigue test of the copper pillars welded to the positive and negative electrodes of the lithium battery, replacing the traditional manual operation method. This avoids the test data deviation caused by uneven operating force and frequency in manual testing, and improves the accuracy of angle fatigue testing.

[0024] 2. In this utility model, the pneumatic clamp two drives the clamping plate two to cooperate with the fixing block two to clamp the lithium battery and maintain stability during the torque test. The torque test of the positive and negative electrode welding copper pillars of the lithium battery is realized through the operation of the automated structure, which reduces the error caused by manual intervention and improves the accuracy of the torque test. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the lithium battery angle and torque testing machine proposed in this utility model;

[0026] Figure 2 This is a side view of the lithium battery angle and torque testing machine proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the angle testing clip of the lithium battery angle and torque testing machine proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the clamping plate of the lithium battery angle and torque testing machine proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the clamping plate two of the lithium battery angle and torque testing machine proposed in this utility model.

[0030] Legend:

[0031] 1. Frame; 2. Foot; 3. Stepper motor 1; 4. Fixing plate 1; 5. Rotating plate; 6. Angle test clamp; 7. Fixing block 1; 8. Support block 1; 9. Pneumatic clamp 1; 10. Angle test sensor; 11. Clamping plate 1; 12. Base 1; 13. Lithium battery; 14. Torque test sensor; 15. Stepper motor 2; 16. Rotating rod; 17. Fixing plate 2; 18. Fixing block 2; 19. Base 2; 20. Pneumatic clamp 2; 21. Clamping plate 2; 22. Angle display table; 23. Test parameter table; 24. Torque display table. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3This utility model provides an embodiment of a lithium battery angle and torque testing machine, including a frame 1 and two lithium batteries 13. A testing mechanism is installed on the top of the frame 1 to perform angle and torque tests on the copper pillars welded to the lithium batteries 13. A support block 8 is fixedly connected to the top of the frame 1, and an angle clamping assembly is installed on the top of the support block 8 to clamp the lithium batteries 13 during left-right sway angle fatigue testing, ensuring stability during angle testing. The testing mechanism includes an angle testing component and a torque testing component. The angle testing component includes an angle testing sensor 10. Angle test sensor 10 is installed on the top of frame 1. A stepper motor 3 is installed in the middle of the angle test sensor 10. A fixing plate 4 is fixedly connected to the outside of the angle test sensor 10. A rotating plate 5 is installed in the middle of the angle test sensor 10. The rotating plate 5 is rotatably connected to the outside of the fixing plate 4. Angle test clamp 6 is installed on the outside of the rotating plate 5. The stepper motor 3 provides power and transmits the power to the rotating plate 5 to make it rotate, thereby driving the angle test clamp 6 to rotate and perform left and right swing angle tests on the positive and negative electrode welded copper pillars of lithium battery 13. The angle test sensor 10 detects the relevant angle test data.

[0034] Reference Figure 1 Figure 2 and Figure 5 The torque testing assembly includes a torque testing sensor 14, which is mounted on the top of the frame 1. A stepper motor 15 is mounted in the middle of the torque testing sensor 14, and a rotating rod 16 is rotatably connected to the middle of the torque testing sensor 14. The stepper motor 15 provides power and transmits the power to the rotating rod 16, causing the rotating rod 16 to rotate and transmit torque to the lithium battery 13. This causes the welded copper column of the lithium battery 13 to bear torque, thus performing a torque test. The torque testing sensor 14 detects the relevant torque test data. A base 19 is fixedly connected to the top of the frame 1, and a torque clamping assembly is mounted on the outside of the base 19 to clamp the lithium battery 13 for torque testing, keeping the lithium battery 13 stable during the torque test.

[0035] Reference Figures 1-5The angle clamping assembly includes a pneumatic clamp 9, which is fixedly connected to the top of the support block 8. A clamping plate 11 is fixedly connected to the working end of the pneumatic clamp 9. A fixing block 7 is fixedly connected to the top of the frame 1. When air is supplied, the pneumatic clamp 9 drives the clamping plate 11 to move to the left, cooperating with the fixing block 7 to clamp the lithium battery 13 from both sides, thus maintaining the stability of the lithium battery 13 during the left and right swing angle test. The torque clamping assembly includes a pneumatic clamp 20, which is fixedly connected to the top of the base 19. A clamping plate 21 is fixedly connected to the working end of the pneumatic clamp 20. A fixing block 18 is fixedly connected to the top of the frame 1. A lithium battery 13 is located outside the fixing block 18. When air is supplied, the pneumatic clamp 20 drives the clamping plate 21 to move forward, cooperating with the fixing block 18 to clamp the lithium battery 13 from both sides. To maintain the stability of lithium battery 13 during torque testing; a second fixing plate 17 is fixedly connected to the top of the frame 1, and a rotating rod 16 is rotatably connected to the middle of the second fixing plate 17, which supports and limits the rotating rod 16; a first base 12 is fixedly connected to the top of the frame 1, and another lithium battery 13 is located on top of the first base 12, which is used to place and support the lithium battery 13; an angle display meter 22, a test parameter meter 23, and a torque display meter 24 are respectively installed in the middle of the frame 1. The test parameter meter 23 can be used to set and display relevant test parameters and adjust parameters, while the angle display meter 22 and the torque display meter 24 can respectively display the data detected by the angle test sensor 10 and the torque test sensor 14; multiple feet 2 are fixedly connected to the bottom of the frame 1 to support the equipment and maintain its stability.

[0036] Working principle: First, place the lithium battery 13 on top of the base 12. Start the pneumatic clamp 9, and its working end will drive the clamping plate 11 to move towards the fixing block 7. The fixing block 7 will clamp and fix the lithium battery 13. Then, start the stepper motor 3 to drive the rotating part in the middle of the angle test sensor 10 to rotate, which will drive the rotating plate 5 to rotate around the fixing plate 4. This will cause the angle test clamp 6 installed on the outside of the rotating plate 5 to rotate together, applying an angle change to the positive and negative welding copper pillars of the clamped lithium battery 13. The angle test sensor 10 will detect the angle test data in real time and transmit the signal to the angle display table 22. After the angle test is completed, the pneumatic clamp 9 will reset and release the lithium battery 13 to check whether the welding copper pillars are fixed.

[0037] The lithium battery 13 is placed outside the fixing block 18. The pneumatic clamp 20 is started, and its working end drives the clamping plate 21 to move forward, which works with the fixing block 18 to clamp the lithium battery 13. After the stepper motor 15 is started, it transmits power to the rotating rod 16, so that the rotating rod 16 rotates stably under the limit of the fixing plate 17, and applies torque to the positive and negative welding copper pillars of the battery 13. The torque test sensor 14 detects the torque test data and transmits the signal to the torque display table 24. After the test is completed, the pneumatic clamp 20 is reset to release the lithium battery 13 and check whether the welding copper pillars are fixed.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery angle and torque testing machine, comprising a frame (1) and two lithium batteries (13), characterized in that: A testing mechanism is installed on the top of the frame (1), and a support block (8) is fixedly connected to the top of the frame (1). An angle clamping assembly is installed on the top of the support block (8). The testing mechanism includes an angle testing component and a torque testing component. The angle testing component includes an angle testing sensor (10). The angle testing sensor (10) is installed on the top of the frame (1). A stepper motor (3) is installed in the middle of the angle testing sensor (10). A fixing plate (4) is fixedly connected to the outside of the angle testing sensor (10). A rotating plate (5) is installed in the middle of the angle testing sensor (10). The rotating plate (5) is rotatably connected to the outside of the fixing plate (4). An angle testing clamp (6) is installed on the outside of the rotating plate (5).

2. The lithium battery angle and torque testing machine according to claim 1, characterized in that: The torque testing assembly includes a torque testing sensor (14), which is mounted on the top of the frame (1). A stepper motor (15) is mounted in the middle of the torque testing sensor (14), and a rotating rod (16) is rotatably connected to the middle of the torque testing sensor (14). A base (19) is fixedly connected to the top of the frame (1), and a torque clamping assembly is mounted on the outer side of the base (19).

3. The lithium battery angle and torque testing machine according to claim 1, characterized in that: The angle clamping assembly includes a pneumatic clamp (9), which is fixedly connected to the top of the support block (8). The working end of the pneumatic clamp (9) is fixedly connected to a clamping plate (11), and the top of the frame (1) is fixedly connected to a fixing block (7).

4. The lithium battery angle and torque testing machine according to claim 2, characterized in that: The torque clamping assembly includes a pneumatic clamp two (20), which is fixedly connected to the top of the base two (19). The working end of the pneumatic clamp two (20) is fixedly connected to a clamping plate two (21). The top of the frame (1) is fixedly connected to a fixing block two (18), and a lithium battery (13) is located on the outside of the fixing block two (18).

5. The lithium battery angle and torque testing machine according to claim 2, characterized in that: The top of the frame (1) is fixedly connected to a second fixing plate (17), and the rotating rod (16) is rotatably connected to the middle of the second fixing plate (17).

6. The lithium battery angle and torque testing machine according to claim 1, characterized in that: A base (12) is fixedly connected to the top of the frame (1), and another lithium battery (13) is located on the top of the base (12).

7. The lithium battery angle and torque testing machine according to claim 1, characterized in that: An angle display (22), a test parameter table (23), and a torque display (24) are respectively installed in the middle part of the frame (1).

8. The lithium battery angle and torque testing machine according to claim 1, characterized in that: The bottom of the frame (1) is fixedly connected to multiple feet (2).

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